keyboard for Vietnamese
What are the possibilities for a vietnamees keyboard?
There are some instructions on the incubator page: https://incubator.duolingo.com/courses/vi/en/status
I originally started with the Vietnamese keyboard layout native to Windows, but apparently Duolingo doesn't like typing all of the characters with accents correctly in that method, so you should probably stick to the TELEX method if you're able.
I used windows' default vietnamese keyboard layout and it works fine. Bạn là tôi, well...
Those characters worked fine. It's just when trying to type the accents on some characters, like ố, it types ô followed by a box. It's only on maybe three letters and only within Duolingo.
You should use Unikey. It support to use Vietnamese. And I always use it when I learn Vietnamese.